Patents by Inventor Clark D. Harrison

Clark D. Harrison has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Pelletized fuel composition and method of manufacture
    Patent number: 5743924
    Abstract: Disclosed is a pelletized fuel composition comprising coal fines in an amount of from 60% to 80% by weight, paper making sludge in an amount of from 10% to 30% by weight, and a shredded polymeric material in an amount of from 0.5% to 15% by weight. Surprisingly and unexpectantly, a high percentage of correctly sized pellets having a desired degree of hardness and structural integrity result without the necessity of a binder, the use of very high pressures or drying the completed pellets by heating at elevated temperatures. A method of manufacturing the fuel composition involving pelletizing at a pressure of from about 1,000 psig to about 4,000 psig is also disclosed.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: April 28, 1998
    Assignee: CQ, Inc.
    Inventors: Robert L. Dospoy, Clifford E. Raleigh, Clark D. Harrison, David J. Akers